EP 1937930 A1 20080702 - SEPARATING DEVICE
Title (en)
SEPARATING DEVICE
Title (de)
TRENNVORRICHTUNG
Title (fr)
DISPOSITIF DE SÉPARATION
Publication
Application
Priority
- NO 2006000315 W 20060914
- NO 20054272 A 20050915
Abstract (en)
[origin: WO2007032687A1] The invention comprises a sealing body (15)-separatingseparating device) which can be used to separate fluids in risers used in offshore oil production from drilling vessels at the sea surface. The invention is characterized in that the sealing body (15) can be placed in position above the wellhead (13) using several appropriate methods and, in an especially preferred application, by utilizing an installation tool (27) which is not sealing against the inner wall of the riser and which contains a suitable positioning means (28), and that the body (15) which forms a seal against the inner wall of the riser separates fluids during the replacement of drilling fluid with water and of water with drilling fluid. The body (15) can be displaced using hydraulic force upwards in the longitudinal direction of the riser in that fluid is pumped at a relatively high pressure down the externally located smaller pipes (9, 10, 11) of the riser. The body can be used whilst the drilling vessel (1) heaves relative to the seabed (3), and it is independent of the drilling vessel's drawers for the drill string (21) while the fluid is being replaced.
IPC 8 full level
E21B 19/00 (2006.01); E21B 17/01 (2006.01); E21B 21/00 (2006.01)
IPC 8 main group level
E21B (2006.01)
CPC (source: EP US)
E21B 17/01 (2013.01 - EP US); E21B 21/001 (2013.01 - EP US); E21B 33/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007032687 A1 20070322; AT E425343 T1 20090315; AU 2006291640 A1 20070322; AU 2006291640 B2 20111006; BR PI0616216 A2 20110614; BR PI0616216 B1 20170502; DE 602006005697 D1 20090423; DK 1937930 T3 20090713; EP 1937930 A1 20080702; EP 1937930 B1 20090311; ES 2323899 T3 20090727; NO 20054272 D0 20050915; NO 20054272 L 20070316; NO 325898 B1 20080811; US 2008245528 A1 20081009; US 8235123 B2 20120807
DOCDB simple family (application)
NO 2006000315 W 20060914; AT 06799546 T 20060914; AU 2006291640 A 20060914; BR PI0616216 A 20060914; DE 602006005697 T 20060914; DK 06799546 T 20060914; EP 06799546 A 20060914; ES 06799546 T 20060914; NO 20054272 A 20050915; US 6608006 A 20060914